apps of trigo
Asked by suchet_r
30th August 2009,
8:13 PM
Answered by Expert
Answer:
Let B and C be the positions of the two aeroplanes and BCD the vetical line.
so from the given info,
BD=3000 m
let CD=h
Let A be the point from where the angles of elevation of the aeroplanes is given.
and let AD=x
so
angle CAD=45 degrees
and
angle BAD =60 degrees.
In triangle BAD,
tan 60=3000/x..(i)
in triangle CAD,
tan 45=h/x....(ii)
from (i) we get,
x=1000*(root 3)
from (ii) we get,
x=h
so h=1000*(root 3)
BC= dist bet the aeroplanes=3000-h
calculate by putting the value of h.
Answered by Expert
31st August 2009,
9:18 AM
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